<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <home></home>
    
  </div>


  <script src="./vue.js"></script>
  <script>
    // 定义一个全局的指令
    Vue.directive('focus', {
      inserted(el, binding){
        console.log(el);
        console.log(binding);
        el.focus();
      }
    })
    const Home = {
      template: `
        <div>
          <h2>我是父组件1</h2>
          <input v-focus="7438394893"/>
        </div>
      `
    }
    Vue.component('Home', Home);
    
    const vm = new Vue({
      el: '#app',
      data: {

      }
    })
  </script>
</body>

</html>